21800270098 has 16 divisors (see below), whose sum is σ = 33408080640. Its totient is φ = 10664408896.

The previous prime is 21800270053. The next prime is 21800270117. The reversal of 21800270098 is 89007200812.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 232938 + ... + 312826.

It is an arithmetic number, because the mean of its divisors is an integer number (2088005040).

Almost surely, 2^21800270098 is an apocalyptic number.

21800270098 is a deficient number, since it is larger than the sum of its proper divisors (11607810542).

21800270098 is a wasteful number, since it uses less digits than its factorization.

21800270098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82841.

The product of its (nonzero) digits is 16128, while the sum is 37.

The spelling of 21800270098 in words is "twenty-one billion, eight hundred million, two hundred seventy thousand, ninety-eight".